Finally joined and posting on this forum after lurking for a bit. Bought an R51 before Thanksgiving before the rebate expired (then an RM380 and RP9 to get even more rebates). ;)
Love the look and feel of the R51. Love the intuitive aiming. Just working on the magazines now. Don't get much range time, but using snap caps and laser cartridge as much as I can.
Welcome from Arizona. Waiting on your range report on all three. I have the RM380 also and was thinking about the RP9, still unsure.
Thanks. I'll be changing the springs on the RM380 hopefully to improve the trigger pull (it's very long and difficult). Haven't shot the RP9.
Welcome from Houston! Give the mags some time to break in. Some mag issues fix themselves after a while